lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Fri, 8 May 2020 16:57:50 -0700
From:   Andy Lutomirski <>
To:     Thomas Gleixner <>
Cc:     LKML <>, X86 ML <>,
        "Paul E. McKenney" <>,
        Andy Lutomirski <>,
        Alexandre Chartre <>,
        Frederic Weisbecker <>,
        Paolo Bonzini <>,
        Sean Christopherson <>,
        Masami Hiramatsu <>,
        Petr Mladek <>,
        Steven Rostedt <>,
        Joel Fernandes <>,
        Boris Ostrovsky <>,
        Juergen Gross <>,
        Brian Gerst <>,
        Mathieu Desnoyers <>,
        Josh Poimboeuf <>,
        Will Deacon <>
Subject: Re: [patch V4 part 2 06/18] x86/entry: Move irq flags tracing to prepare_exit_to_usermode()

On Tue, May 5, 2020 at 7:14 AM Thomas Gleixner <> wrote:
> This is another step towards more C-code and less convoluted ASM.
> Similar to the entry path, invoke the tracer before context tracking which
> might turn off RCU and invoke lockdep as the last step before going back to
> user space. Annotate the code sections in exit_to_user_mode() accordingly
> so objtool won't complain about the tracer invocation.

Acked-by: Andy Lutomirski <>

Note to self: the nmi code needs to be reworked to go through
prepare_exit_to_usermode(), too.  I'll do this once this whole pile

Powered by blists - more mailing lists